I have a 2010 Galaxy with two remote keys. One of the keys is working perfectly however the other seems to have developed a fault. If the car is locked, then only the fully functional key will work. However, if I un-lock the car with the working key I can then happily lock and unlock with the 'faulty' key. If I then leave it for about 5 minutes, the faulty key will no longer work. I have replaced the battery but the problem continues. The keys were re-programed by a Ford main dealer to try to sort the fault but still no luck. Does anyone have any ideas? Thanks.
